Method for manufacturing microlens array

A microlens array and array technology, which is applied in the field of preparation of columnar microlens arrays, can solve problems such as the influence of refractive index, the application of columnar micro-concave lens arrays can not achieve the desired effect, and severe shrinkage

Active Publication Date: 2008-11-12
SUPERD CO LTD
View PDF0 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Since the prepared columnar micro-concave lens array needs to have a certain hardness and refractive index, it is very limited in the selection of UV curing adhesive materials or the selection of methods and processes for synthesizing UV curing adhesives. UV with matching refractive index but higher hardness Cured glue will not be applied, the harder...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for manufacturing microlens array
  • Method for manufacturing microlens array
  • Method for manufacturing microlens array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The preparation method of the present invention is as follows Figure 5 As shown, this embodiment is also described by using a cylindrical micro-convex array mold to prepare a columnar micro-concave lens array as an example, including the following steps:

[0033] Step 1: Coating UV curable glue on the mold (in this embodiment, oxygen-inhibited UV curable glue is selected). Using UV curing rubber roller coating equipment to apply and level the UV curing glue can make the UV curing glue about 30um higher than the highest point of the columnar micro-convex row array mold, which can be flexibly adjusted according to the required thickness.

[0034] Step 2: Place the mold coated with UV curable adhesive in an aerobic environment for the first ultraviolet light irradiation. A 60-watt ultraviolet lamp can be used for irradiation, the irradiation distance is 50cm, and the irradiation time is less than 1 minute (the length of time can be flexibly set according to the specific s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a preparation method for a micro-lens array, which comprises the following steps: Step 1, a UV curing adhesive is coated and distributed on a mold; Step 2, the mold coated and distributed with the UV curing adhesive is put in a polymerization inhibition atmosphere for ultraviolet radiation for the first time; Step 3, ultraviolet radiation for the second time is carried out in an atmosphere without polymerization inhibition; Step 4, peeling is carried out. A step of covering a substrate material can be included between the Step 2 and the Step 3. The UV curing adhesive can be a UV curing adhesive of oxygen polymerization inhibition type. The mold can be a columnar low arched parallel array mold or a columnar slightly concave parallel array mold; the method adopts a secondary ultraviolet curing method, which can well solve the problem of shrinkage of the UV curing adhesive when a columnar slightly concave lens array is prepared and is not limited by the arc height of a columnar micro-lens array.

Description

technical field [0001] The invention relates to a method for preparing a columnar microlens array, in particular to a method for preparing a microlens array that can avoid the decrease in precision of the microlens array caused by shrinkage during UV glue curing. Background technique [0002] In three-dimensional display technology, especially in naked-eye three-dimensional display technology, the use of microlens arrays is becoming more and more extensive, and the production technology of microlens arrays is becoming more and more mature and diverse, especially the production of UV curing glue (ultraviolet light curing glue). The technology of microlens array has attracted more and more attention and development. UV curing adhesives are composed of prepolymers, active monomers, photoinitiators and other main components and additives such as stabilizers and leveling agents. Under the irradiation of UV light of appropriate wavelength, the photoinitiator rapidly generates fre...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G02B3/00B05D7/24B05D3/06B29D11/00
Inventor 顾开宇
Owner SUPERD CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap